[ck] Add Yihao Wu as scheduler's maintainer

Hi, all I'm glad to invide Yihao Wu &lt;wuyihao(a)linux.alibaba.com&gt;  as maintainer of ANCK scheduler. Yihao is working on linux kernel scheduler for 5 years, and show great interest in kernel technologies. Here are some highlight contributions from Yihao: 1. Implement the lastest version of CPU SLI feature (Sevice Level Index) for rich container;    this new version show great advantages in performance and accuracy. 2. Design and implement cpu isolation solution for function computing running on Daishu, which    enable 2000 microvm running on one machine which acceptable overhead (< 1%). 3. The core develper in plugsched project, which aims to upgrade linux kernel scheduler subsystem online.    more details please visit project repo: https://gitee.com/anolis/plugsched 4. Backport cpuidle-haltpoll feature to ANCK and optimize performance for virtual machine. 5. Proficient in problem analysis, be skilled using gdb, crash, pyGDB, qemu ... https://lore.kernel.org/all/20220428103726.108597-1-wuyihao@linux.alibaba.c… Working with Yihao is efficient and have a sense of achievement. Let us hope it happens soon. -- csp